<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>主页面</title>
    <frameset cols="120,*">
        <frame src="董天启2.html"></frame>
        <frame src="董天启3.html" name="content"> 
    </frameset>
</head>
<body>
    
    
</body>
</html>